/*
* jQuery UI Tabs 1.8.7
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Tabs
*
* Depends:
*	jquery.ui.core.js
*	jquery.ui.widget.js
*/
(function ($, undefined) {
    var tabId = 0,
	listId = 0;

    function getNextTabId() {
        return ++tabId;
    }

    function getNextListId() {
        return ++listId;
    }

    $.widget("ui.tabs", {
        options: {
            add: null,
            ajaxOptions: null,
            cache: false,
            cookie: null, // e.g. { expires: 7, path: '/', domain: 'jquery.com', secure: true }
            collapsible: false,
            disable: null,
            disabled: [],
            enable: null,
            event: "click",
            fx: null, // e.g. { height: 'toggle', opacity: 'toggle', duration: 200 }
            idPrefix: "ui-tabs-",
            load: null,
            panelTemplate: "<div></div>",
            remove: null,
            select: null,
            show: null,
            spinner: "<em>Loading&#8230;</em>",
            tabTemplate: "<li><a href='#{href}'><span>#{label}</span></a></li>"
        },

        _create: function () {
            this._tabify(true);
        },

        _setOption: function (key, value) {
            if (key == "selected") {
                if (this.options.collapsible && value == this.options.selected) {
                    return;
                }
                this.select(value);
            } else {
                this.options[key] = value;
                this._tabify();
            }
        },

        _tabId: function (a) {
            return a.title && a.title.replace(/\s/g, "_").replace(/[^\w\u00c0-\uFFFF-]/g, "") ||
			this.options.idPrefix + getNextTabId();
        },

        _sanitizeSelector: function (hash) {
            // we need this because an id may contain a ":"
            return hash.replace(/:/g, "\\:");
        },

        _cookie: function () {
            var cookie = this.cookie ||
			(this.cookie = this.options.cookie.name || "ui-tabs-" + getNextListId());
            return $.cookie.apply(null, [cookie].concat($.makeArray(arguments)));
        },

        _ui: function (tab, panel) {
            return {
                tab: tab,
                panel: panel,
                index: this.anchors.index(tab)
            };
        },

        _cleanup: function () {
            // restore all former loading tabs labels
            this.lis.filter(".ui-state-processing")
			.removeClass("ui-state-processing")
			.find("span:data(label.tabs)")
				.each(function () {
				    var el = $(this);
				    el.html(el.data("label.tabs")).removeData("label.tabs");
				});
        },

        _tabify: function (init) {
            var self = this,
			o = this.options,
			fragmentId = /^#.+/; // Safari 2 reports '#' for an empty hash

            this.list = this.element.find("ol,ul").eq(0);
            this.lis = $(" > li:has(a[href])", this.list);
            this.anchors = this.lis.map(function () {
                return $("a", this)[0];
            });
            this.panels = $([]);

            this.anchors.each(function (i, a) {
                var href = $(a).attr("href");
                // For dynamically created HTML that contains a hash as href IE < 8 expands
                // such href to the full page url with hash and then misinterprets tab as ajax.
                // Same consideration applies for an added tab with a fragment identifier
                // since a[href=#fragment-identifier] does unexpectedly not match.
                // Thus normalize href attribute...
                var hrefBase = href.split("#")[0],
				baseEl;
                if (hrefBase && (hrefBase === location.toString().split("#")[0] ||
					(baseEl = $("base")[0]) && hrefBase === baseEl.href)) {
                    href = a.hash;
                    a.href = href;
                }

                // inline tab
                if (fragmentId.test(href)) {
                    self.panels = self.panels.add(self.element.find(self._sanitizeSelector(href)));
                    // remote tab
                    // prevent loading the page itself if href is just "#"
                } else if (href && href !== "#") {
                    // required for restore on destroy
                    $.data(a, "href.tabs", href);

                    // TODO until #3808 is fixed strip fragment identifier from url
                    // (IE fails to load from such url)
                    $.data(a, "load.tabs", href.replace(/#.*$/, ""));

                    var id = self._tabId(a);
                    a.href = "#" + id;
                    var $panel = self.element.find("#" + id);
                    if (!$panel.length) {
                        $panel = $(o.panelTemplate)
						.attr("id", id)
						.addClass("ui-tabs-panel ui-widget-content ui-corner-bottom")
						.insertAfter(self.panels[i - 1] || self.list);
                        $panel.data("destroy.tabs", true);
                    }
                    self.panels = self.panels.add($panel);
                    // invalid tab href
                } else {
                    o.disabled.push(i);
                }
            });

            // initialization from scratch
            if (init) {
                // attach necessary classes for styling
                this.element.addClass("ui-tabs ui-widget ui-widget-content ui-corner-all");
                this.list.addClass("ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all");
                this.lis.addClass("ui-state-default ui-corner-top");
                this.panels.addClass("ui-tabs-panel ui-widget-content ui-corner-bottom");

                // Selected tab
                // use "selected" option or try to retrieve:
                // 1. from fragment identifier in url
                // 2. from cookie
                // 3. from selected class attribute on <li>
                if (o.selected === undefined) {
                    if (location.hash) {
                        this.anchors.each(function (i, a) {
                            if (a.hash == location.hash) {
                                o.selected = i;
                                return false;
                            }
                        });
                    }
                    if (typeof o.selected !== "number" && o.cookie) {
                        o.selected = parseInt(self._cookie(), 10);
                    }
                    if (typeof o.selected !== "number" && this.lis.filter(".ui-tabs-selected").length) {
                        o.selected = this.lis.index(this.lis.filter(".ui-tabs-selected"));
                    }
                    o.selected = o.selected || (this.lis.length ? 0 : -1);
                } else if (o.selected === null) { // usage of null is deprecated, TODO remove in next release
                    o.selected = -1;
                }

                // sanity check - default to first tab...
                o.selected = ((o.selected >= 0 && this.anchors[o.selected]) || o.selected < 0)
				? o.selected
				: 0;

                // Take disabling tabs via class attribute from HTML
                // into account and update option properly.
                // A selected tab cannot become disabled.
                o.disabled = $.unique(o.disabled.concat(
				$.map(this.lis.filter(".ui-state-disabled"), function (n, i) {
				    return self.lis.index(n);
				})
			)).sort();

                if ($.inArray(o.selected, o.disabled) != -1) {
                    o.disabled.splice($.inArray(o.selected, o.disabled), 1);
                }

                // highlight selected tab
                this.panels.addClass("ui-tabs-hide");
                this.lis.removeClass("ui-tabs-selected ui-state-active");
                // check for length avoids error when initializing empty list
                if (o.selected >= 0 && this.anchors.length) {
                    self.element.find(self._sanitizeSelector(self.anchors[o.selected].hash)).removeClass("ui-tabs-hide");
                    this.lis.eq(o.selected).addClass("ui-tabs-selected ui-state-active");

                    // seems to be expected behavior that the show callback is fired
                    self.element.queue("tabs", function () {
                        self._trigger("show", null,
						self._ui(self.anchors[o.selected], self.element.find(self._sanitizeSelector(self.anchors[o.selected].hash))));
                    });

                    this.load(o.selected);
                }

                // clean up to avoid memory leaks in certain versions of IE 6
                // TODO: namespace this event
                $(window).bind("unload", function () {
                    self.lis.add(self.anchors).unbind(".tabs");
                    self.lis = self.anchors = self.panels = null;
                });
                // update selected after add/remove
            } else {
                o.selected = this.lis.index(this.lis.filter(".ui-tabs-selected"));
            }

            // update collapsible
            // TODO: use .toggleClass()
            this.element[o.collapsible ? "addClass" : "removeClass"]("ui-tabs-collapsible");

            // set or update cookie after init and add/remove respectively
            if (o.cookie) {
                this._cookie(o.selected, o.cookie);
            }

            // disable tabs
            for (var i = 0, li; (li = this.lis[i]); i++) {
                $(li)[$.inArray(i, o.disabled) != -1 &&
                // TODO: use .toggleClass()
				!$(li).hasClass("ui-tabs-selected") ? "addClass" : "removeClass"]("ui-state-disabled");
            }

            // reset cache if switching from cached to not cached
            if (o.cache === false) {
                this.anchors.removeData("cache.tabs");
            }

            // remove all handlers before, tabify may run on existing tabs after add or option change
            this.lis.add(this.anchors).unbind(".tabs");

            if (o.event !== "mouseover") {
                var addState = function (state, el) {
                    if (el.is(":not(.ui-state-disabled)")) {
                        el.addClass("ui-state-" + state);
                    }
                };
                var removeState = function (state, el) {
                    el.removeClass("ui-state-" + state);
                };
                this.lis.bind("mouseover.tabs", function () {
                    addState("hover", $(this));
                });
                this.lis.bind("mouseout.tabs", function () {
                    removeState("hover", $(this));
                });
                this.anchors.bind("focus.tabs", function () {
                    addState("focus", $(this).closest("li"));
                });
                this.anchors.bind("blur.tabs", function () {
                    removeState("focus", $(this).closest("li"));
                });
            }

            // set up animations
            var hideFx, showFx;
            if (o.fx) {
                if ($.isArray(o.fx)) {
                    hideFx = o.fx[0];
                    showFx = o.fx[1];
                } else {
                    hideFx = showFx = o.fx;
                }
            }

            // Reset certain styles left over from animation
            // and prevent IE's ClearType bug...
            function resetStyle($el, fx) {
                $el.css("display", "");
                if (!$.support.opacity && fx.opacity) {
                    $el[0].style.removeAttribute("filter");
                }
            }

            // Show a tab...
            var showTab = showFx
			? function (clicked, $show) {
			    $(clicked).closest("li").addClass("ui-tabs-selected ui-state-active");
			    $show.hide().removeClass("ui-tabs-hide") // avoid flicker that way
					.animate(showFx, showFx.duration || "normal", function () {
					    resetStyle($show, showFx);
					    self._trigger("show", null, self._ui(clicked, $show[0]));
					});
			}
			: function (clicked, $show) {
			    $(clicked).closest("li").addClass("ui-tabs-selected ui-state-active");
			    $show.removeClass("ui-tabs-hide");
			    self._trigger("show", null, self._ui(clicked, $show[0]));
			};

            // Hide a tab, $show is optional...
            var hideTab = hideFx
			? function (clicked, $hide) {
			    $hide.animate(hideFx, hideFx.duration || "normal", function () {
			        self.lis.removeClass("ui-tabs-selected ui-state-active");
			        $hide.addClass("ui-tabs-hide");
			        resetStyle($hide, hideFx);
			        self.element.dequeue("tabs");
			    });
			}
			: function (clicked, $hide, $show) {
			    self.lis.removeClass("ui-tabs-selected ui-state-active");
			    $hide.addClass("ui-tabs-hide");
			    self.element.dequeue("tabs");
			};

            // attach tab event handler, unbind to avoid duplicates from former tabifying...
            this.anchors.bind(o.event + ".tabs", function () {
                var el = this,
				$li = $(el).closest("li"),
				$hide = self.panels.filter(":not(.ui-tabs-hide)"),
				$show = self.element.find(self._sanitizeSelector(el.hash));

                // If tab is already selected and not collapsible or tab disabled or
                // or is already loading or click callback returns false stop here.
                // Check if click handler returns false last so that it is not executed
                // for a disabled or loading tab!
                if (($li.hasClass("ui-tabs-selected") && !o.collapsible) ||
				$li.hasClass("ui-state-disabled") ||
				$li.hasClass("ui-state-processing") ||
				self.panels.filter(":animated").length ||
				self._trigger("select", null, self._ui(this, $show[0])) === false) {
                    this.blur();
                    return false;
                }

                o.selected = self.anchors.index(this);

                self.abort();

                // if tab may be closed
                if (o.collapsible) {
                    if ($li.hasClass("ui-tabs-selected")) {
                        o.selected = -1;

                        if (o.cookie) {
                            self._cookie(o.selected, o.cookie);
                        }

                        self.element.queue("tabs", function () {
                            hideTab(el, $hide);
                        }).dequeue("tabs");

                        this.blur();
                        return false;
                    } else if (!$hide.length) {
                        if (o.cookie) {
                            self._cookie(o.selected, o.cookie);
                        }

                        self.element.queue("tabs", function () {
                            showTab(el, $show);
                        });

                        // TODO make passing in node possible, see also http://dev.jqueryui.com/ticket/3171
                        self.load(self.anchors.index(this));

                        this.blur();
                        return false;
                    }
                }

                if (o.cookie) {
                    self._cookie(o.selected, o.cookie);
                }

                // show new tab
                if ($show.length) {
                    if ($hide.length) {
                        self.element.queue("tabs", function () {
                            hideTab(el, $hide);
                        });
                    }
                    self.element.queue("tabs", function () {
                        showTab(el, $show);
                    });

                    self.load(self.anchors.index(this));
                } else {
                    throw "jQuery UI Tabs: Mismatching fragment identifier.";
                }

                // Prevent IE from keeping other link focussed when using the back button
                // and remove dotted border from clicked link. This is controlled via CSS
                // in modern browsers; blur() removes focus from address bar in Firefox
                // which can become a usability and annoying problem with tabs('rotate').
                if ($.browser.msie) {
                    this.blur();
                }
            });

            // disable click in any case
            this.anchors.bind("click.tabs", function () {
                return false;
            });
        },

        _getIndex: function (index) {
            // meta-function to give users option to provide a href string instead of a numerical index.
            // also sanitizes numerical indexes to valid values.
            if (typeof index == "string") {
                index = this.anchors.index(this.anchors.filter("[href$=" + index + "]"));
            }

            return index;
        },

        destroy: function () {
            var o = this.options;

            this.abort();

            this.element
			.unbind(".tabs")
			.removeClass("ui-tabs ui-widget ui-widget-content ui-corner-all ui-tabs-collapsible")
			.removeData("tabs");

            this.list.removeClass("ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all");

            this.anchors.each(function () {
                var href = $.data(this, "href.tabs");
                if (href) {
                    this.href = href;
                }
                var $this = $(this).unbind(".tabs");
                $.each(["href", "load", "cache"], function (i, prefix) {
                    $this.removeData(prefix + ".tabs");
                });
            });

            this.lis.unbind(".tabs").add(this.panels).each(function () {
                if ($.data(this, "destroy.tabs")) {
                    $(this).remove();
                } else {
                    $(this).removeClass([
					"ui-state-default",
					"ui-corner-top",
					"ui-tabs-selected",
					"ui-state-active",
					"ui-state-hover",
					"ui-state-focus",
					"ui-state-disabled",
					"ui-tabs-panel",
					"ui-widget-content",
					"ui-corner-bottom",
					"ui-tabs-hide"
				].join(" "));
                }
            });

            if (o.cookie) {
                this._cookie(null, o.cookie);
            }

            return this;
        },

        add: function (url, label, index) {
            if (index === undefined) {
                index = this.anchors.length;
            }

            var self = this,
			o = this.options,
			$li = $(o.tabTemplate.replace(/#\{href\}/g, url).replace(/#\{label\}/g, label)),
			id = !url.indexOf("#") ? url.replace("#", "") : this._tabId($("a", $li)[0]);

            $li.addClass("ui-state-default ui-corner-top").data("destroy.tabs", true);

            // try to find an existing element before creating a new one
            var $panel = self.element.find("#" + id);
            if (!$panel.length) {
                $panel = $(o.panelTemplate)
				.attr("id", id)
				.data("destroy.tabs", true);
            }
            $panel.addClass("ui-tabs-panel ui-widget-content ui-corner-bottom ui-tabs-hide");

            if (index >= this.lis.length) {
                $li.appendTo(this.list);
                $panel.appendTo(this.list[0].parentNode);
            } else {
                $li.insertBefore(this.lis[index]);
                $panel.insertBefore(this.panels[index]);
            }

            o.disabled = $.map(o.disabled, function (n, i) {
                return n >= index ? ++n : n;
            });

            this._tabify();

            if (this.anchors.length == 1) {
                o.selected = 0;
                $li.addClass("ui-tabs-selected ui-state-active");
                $panel.removeClass("ui-tabs-hide");
                this.element.queue("tabs", function () {
                    self._trigger("show", null, self._ui(self.anchors[0], self.panels[0]));
                });

                this.load(0);
            }

            this._trigger("add", null, this._ui(this.anchors[index], this.panels[index]));
            return this;
        },

        remove: function (index) {
            index = this._getIndex(index);
            var o = this.options,
			$li = this.lis.eq(index).remove(),
			$panel = this.panels.eq(index).remove();

            // If selected tab was removed focus tab to the right or
            // in case the last tab was removed the tab to the left.
            if ($li.hasClass("ui-tabs-selected") && this.anchors.length > 1) {
                this.select(index + (index + 1 < this.anchors.length ? 1 : -1));
            }

            o.disabled = $.map(
			$.grep(o.disabled, function (n, i) {
			    return n != index;
			}),
			function (n, i) {
			    return n >= index ? --n : n;
			});

            this._tabify();

            this._trigger("remove", null, this._ui($li.find("a")[0], $panel[0]));
            return this;
        },

        enable: function (index) {
            index = this._getIndex(index);
            var o = this.options;
            if ($.inArray(index, o.disabled) == -1) {
                return;
            }

            this.lis.eq(index).removeClass("ui-state-disabled");
            o.disabled = $.grep(o.disabled, function (n, i) {
                return n != index;
            });

            this._trigger("enable", null, this._ui(this.anchors[index], this.panels[index]));
            return this;
        },

        disable: function (index) {
            index = this._getIndex(index);
            var self = this, o = this.options;
            // cannot disable already selected tab
            if (index != o.selected) {
                this.lis.eq(index).addClass("ui-state-disabled");

                o.disabled.push(index);
                o.disabled.sort();

                this._trigger("disable", null, this._ui(this.anchors[index], this.panels[index]));
            }

            return this;
        },

        select: function (index) {
            index = this._getIndex(index);
            if (index == -1) {
                if (this.options.collapsible && this.options.selected != -1) {
                    index = this.options.selected;
                } else {
                    return this;
                }
            }
            this.anchors.eq(index).trigger(this.options.event + ".tabs");
            return this;
        },

        load: function (index) {
            index = this._getIndex(index);
            var self = this,
			o = this.options,
			a = this.anchors.eq(index)[0],
			url = $.data(a, "load.tabs");

            this.abort();

            // not remote or from cache
            if (!url || this.element.queue("tabs").length !== 0 && $.data(a, "cache.tabs")) {
                this.element.dequeue("tabs");
                return;
            }

            // load remote from here on
            this.lis.eq(index).addClass("ui-state-processing");

            if (o.spinner) {
                var span = $("span", a);
                span.data("label.tabs", span.html()).html(o.spinner);
            }

            this.xhr = $.ajax($.extend({}, o.ajaxOptions, {
                url: url,
                success: function (r, s) {
                    self.element.find(self._sanitizeSelector(a.hash)).html(r);

                    // take care of tab labels
                    self._cleanup();

                    if (o.cache) {
                        $.data(a, "cache.tabs", true);
                    }

                    self._trigger("load", null, self._ui(self.anchors[index], self.panels[index]));
                    try {
                        o.ajaxOptions.success(r, s);
                    }
                    catch (e) { }
                },
                error: function (xhr, s, e) {
                    // take care of tab labels
                    self._cleanup();

                    self._trigger("load", null, self._ui(self.anchors[index], self.panels[index]));
                    try {
                        // Passing index avoid a race condition when this method is
                        // called after the user has selected another tab.
                        // Pass the anchor that initiated this request allows
                        // loadError to manipulate the tab content panel via $(a.hash)
                        o.ajaxOptions.error(xhr, s, index, a);
                    }
                    catch (e) { }
                }
            }));

            // last, so that load event is fired before show...
            self.element.dequeue("tabs");

            return this;
        },

        abort: function () {
            // stop possibly running animations
            this.element.queue([]);
            this.panels.stop(false, true);

            // "tabs" queue must not contain more than two elements,
            // which are the callbacks for the latest clicked tab...
            this.element.queue("tabs", this.element.queue("tabs").splice(-2, 2));

            // terminate pending requests from other tabs
            if (this.xhr) {
                this.xhr.abort();
                delete this.xhr;
            }

            // take care of tab labels
            this._cleanup();
            return this;
        },

        url: function (index, url) {
            this.anchors.eq(index).removeData("cache.tabs").data("load.tabs", url);
            return this;
        },

        length: function () {
            return this.anchors.length;
        }
    });

    $.extend($.ui.tabs, {
        version: "1.8.7"
    });

    /*
    * Tabs Extensions
    */

    /*
    * Rotate
    */
    $.extend($.ui.tabs.prototype, {
        rotation: null,
        rotate: function (ms, continuing) {
            var self = this,
			o = this.options;

            var rotate = self._rotate || (self._rotate = function (e) {
                clearTimeout(self.rotation);
                self.rotation = setTimeout(function () {
                    var t = o.selected;
                    self.select(++t < self.anchors.length ? t : 0);
                }, ms);

                if (e) {
                    e.stopPropagation();
                }
            });

            var stop = self._unrotate || (self._unrotate = !continuing
			? function (e) {
			    if (e.clientX) { // in case of a true click
			        self.rotate(null);
			    }
			}
			: function (e) {
			    t = o.selected;
			    rotate();
			});

            // start rotation
            if (ms) {
                this.element.bind("tabsshow", rotate);
                this.anchors.bind(o.event + ".tabs", stop);
                rotate();
                // stop rotation
            } else {
                clearTimeout(self.rotation);
                this.element.unbind("tabsshow", rotate);
                this.anchors.unbind(o.event + ".tabs", stop);
                delete this._rotate;
                delete this._unrotate;
            }

            return this;
        }
    });
})(jQuery);